Volts
Volts

The past and future of community choice aggregation

This week, I chat with Dawn Weisz of MCE Clean Energy about the nitty-gritty of community choice aggregation, where local governments take control of their electricity procurement. We get into issues like navigating utility obstruction, the complexities of rising grid costs they don't control,

Featured Speakers

Dawn Wise Guest

Topics Discussed

Episode Summary

Executive Summary: The episode traces the rise of California community choice aggregation (CCA) through the lens of MCE Clean Energy, the state’s first CCA, and its longtime leader Dawn Wise. It explains how CCAs buy electricity for local communities while utilities keep the wires, why CCAs often beat IOU rates despite exit fees, and how they’re expanding into efficiency, EV charging, and virtual power plants. The discussion also covers utility hostility, current challenges around load growth, data sharing, and grid coordination, and the need for more outcome-based regulation.

Main Topics: What CCAs are and how they differ from municipal utilities (Priority: 5/5): CCAs are local government agencies that procure electricity for their communities while the incumbent utility retains control of poles, wires, billing, and interconnection. They can also run customer programs but do not own the grid. California’s CCA history and MCE’s launch fight (Priority: 5/5): Dawn Wise describes launching Marin Clean Energy in 2010 after California’s 2002 enabling law, including utility opposition, misinformation campaigns, and a failed ballot effort aimed at stopping the model. Rates, exit fees, and why CCAs can still beat utilities (Priority: 5/5): The conversation explains that CCA pricing is shaped by not-for-profit structure, public accountability, lack of shareholder profits, and the Power Charge Indifference Adjustment (PCIA), while utilities remain burdened by legacy contract costs. Customer programs beyond basic electricity procurement (Priority: 4/5): MCE uses its authority to offer energy efficiency, EV charging, low-income support, batteries, and a developing virtual power plant, showing how CCAs can influence load and customer behavior. Load growth, data sharing, and utility/CCA coordination (Priority: 4/5): Wise argues CCAs need better visibility into utility load forecasts, customer programs, and smart-meter data, especially as data centers and electrification increase demand. Regulatory autonomy and outcome-based policy (Priority: 4/5): MCE wants local control preserved and rules that set outcomes rather than prescriptive mandates, arguing that overly specific regulations can raise costs and block innovation. Regional grid coordination and future expansion (Priority: 4/5): Wise supports a broader Western grid and says regional coordination would reduce curtailment, fossil generation, and costs while improving reliability and access to supply.

Key Arguments: CCAs are not municipal utilities; they buy power but leave grid ownership, billing, and interconnection to the incumbent utility. MCE launched with competitive prices and higher renewable content than PG&E, contradicting claims that clean power had to be expensive. Legacy utility costs are not the only reason CCA bills can be lower; CCA structure avoids shareholder profits and can operate more efficiently under public oversight. The PCIA is a long-lasting exit fee that keeps utilities whole on above-market generation costs, so CCA competition occurs on a more level field than critics suggest. CCAs can deliver substantial customer value through programs like managed EV charging, batteries, efficiency, and virtual power plants, not just cheaper generation. Better data sharing from utilities would improve planning, reduce duplication, and make distributed energy resources easier to scale. California should prioritize outcome-based regulation and preserve local CCA autonomy to protect innovation and affordability. Regional transmission expansion across the West would lower costs, reduce curtailment, and improve reliability for California consumers.

Data Points: California CCA share of load: almost 40% - CCAs now serve a large share of California electricity demand. People served by California CCAs: over 6 million - Approximate population served statewide by CCAs. MCE member communities: 38 - MCE Clean Energy’s current service footprint. MCE customers served: over 1.5 million people - Current size of MCE service area. Initial renewable content at launch: 25% - MCE’s default renewable supply in year one. Current default renewable content: 60% - MCE’s default product today. Optional renewable product: 100% renewable - MCE offers a fully renewable electricity option. Bill savings frequency: about 75% of the time - MCE says customers see generation bill savings in most periods. Cumulative customer generation savings: $97.5 million - Total savings since MCE launched in 2010. First-signup participation rate: 80% to 83% - Opt-out enrollment rate in MCE’s first launch communities. Participation rate in later communities: around 93% - Higher opt-in retention after early anti-CCA campaigns subsided. PG&E ballot campaign spend: $45 million - Utility-funded Prop 16 campaign intended to stop CCAs. County-specific anti-CCA phone/mail campaign: $4 million - PG&E spending in Marin County alone on outreach opposing MCE. Managed EV charging shift: 96% of charging off-peak - Result from MCE Sync managed charging program. VPP pilot size: 100 residential customers - Initial scale of MCE’s virtual power plant launch. Estimated household benefit from VPP: $15 to $20 per month - Projected customer value from participating in the VPP pilot. MCE staff size: about 100 - Current internal operational workforce. MCE annual budget: $800 million a year - Approximate operating budget managed by MCE. Trading across states savings: $800 million every year - Estimated statewide bill savings from regional trading/access. Solar and wind curtailment reduction: 10% less curtailment - Expected benefit from regional coordination. In-state fossil gas generation reduction: 31% - Projected decline with regional coordination. Added supply from regional access: 25 gigawatts - Potential extra capacity available during extreme weather.

Pivotal Quotes: "CCAs are local government agencies that can become the power purchasers for their communities." — Dawn Wise: Definition of a CCA and its role in the electricity system. "The key is that we're not paying shareholder profits. And we're publicly accountable." — Dawn Wise: Why MCE believes it can often offer competitive prices. "The discussion around regional coordination is really a discussion about affordability." — Dawn Wise: Her argument for a larger Western grid and expanded transmission coordination.

Implications: CCAs look increasingly viable as a local decarbonization and affordability tool, but their success depends on utility cooperation, smarter regulation, better data access, and grid expansion. For communities, they offer a path to more renewable power and local control.

🔓 Sign Up for Unlimited Episode Search

About Volts

View all episodes from Volts